Temperature-Induced Tunable Assembly of Columnar Phases of Nanorods

被引：24

作者：

Kim, Hyeong Jin ^{[1
,2
]}

Wang, Wenjie ^{[4
]}

Travesset, Alex ^{[1
,3
]}

Mallapragada, Surya K. ^{[1
,2
]}

Vaknin, David ^{[1
,3
]}

机构：

[1] Iowa State Univ, Ames Lab, Ames, IA 50011 USA

[2] Iowa State Univ, Dept Chem & Biol Engn, Ames, IA 50011 USA

[3] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[4] US DOE, Ames Lab, Div Mat Sci & Engn, Ames, IA 50011 USA

来源：

ACS NANO | 2020年 / 14卷 / 05期

关键词：

gold nanorods; assembling nanoparticles; temperature-induced assembly; interpolymer-complexation; PEG-grafted gold nanorods; small-angle X-ray scattering (SAXS); SIDE-BY-SIDE; GOLD NANORODS; NANOCRYSTAL SUPERLATTICES; AU NANORODS;

D O I：

10.1021/acsnano.0c01540

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on the assembly of gold nanorods functionalized with poly(ethylene glycol) in aqueous suspensions by electrostatic control and hydrogen bonds provided by polyelectrolyte linkers (i.e., interpolymer complexation processes). Small-angle X-ray scattering reveals that the quality and stability of the assemblies into the hexagonal columnar phases increase with temperature. Our study shows that the lattice constant of the ordered structures is tunable over a wide range of values by the interplay between electrostatic and hydrophobic effects.

引用

页码：6007 / 6012

页数：6

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